There have been a number of estimates of the cost of rainwater from domestic tanks and some manufacturers will have you believe that the cost of owning a water tank will be negated from the saving in excess water charges.
While costs will vary from one area to another and on a number of variables including the size and construction of your tank, the costs to own and maintain a water tank are generally much higher per kilolitre than the cost of mains water.
Whilst water tank will generally provide water at a much higher costs than town water they will free you from the oppressive conditions of water restrictions now placed on much of the population in Australia.
In some parts of Australia residents are able to be fined for exceeding 200 litres of water per resident per day and a correctly sized water tank will allow those households to maintain their lawns and gardens, and to many that is priceless.
In addition to the purchase price of the tank there are a number of other expenses to be considered:
- transportation,
- installation,
- alterations to gutters and downpipes,
- a tank stand or foundation,
- additional plumbing,
- a first flush device,
- insect-proof screening and gutter guard / screens,
- a pump if necessary,
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